Reduction in Dioxin Emissions by the Addition of Urea as Aqueous Solution to High-temperature Combustion Gas
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概要
- 論文の詳細を見る
In order to study the effect of urea addition to the waste gas on the dioxin formation, a series of experiments is carried out using the fly ashes sampled from two different types of solid waste incinerators. A remarkable suppression effect is obtained for the dioxin formation, while no clear change is observed for the obtained organic chlorine. Considering these results, the method of urea addition to the water splayed into the cooling tower of waste gas is proposed as an effective measure to suppress the dioxin formation at the cooling stage of the combustion gases. A verification test is carried out using an actual solid waste incinerator. When the concentration of urea in the splayed water is set to 0.1%, the toxicity concentration of the dioxins in the waste gas is reduced to approximately half that in the case without the addition. Further, the addition of urea does not significantly affect the concentration of NOx in the waste gas.
- 社団法人 日本鉄鋼協会の論文
- 2008-09-15
著者
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KASAI Eiki
Institute of Multidisciplinary Research for Advanced Materials (IMRAM), Tohoku University
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Murakami Taichi
Institute of Multidisciplinary Research for Advanced Materials, Tohoku University
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Murakami Taichi
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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Kasai Eiki
Institute Of Multidisciplinary Research For Advanced Materials Tohoku University
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Kasai Eiki
Institute For Advanced Materials Processing Tohoku University
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KUZUHARA Shunsuke
Environmental Protection Laboratory, Dowa Eco-System Co., Ltd.
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GOTO Hiroshi
Institute of Mogami Environmental Chemistry Co., Inc.
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Kuzuhara Shunsuke
Environmental Protection Lab. Dowa Eco-system Co. Ltd.
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Kuzuhara Shunsuke
Environmental Protection Laboratory Dowa Eco-system Co. Ltd.
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Kasai Eiki
Institute For Advance Materials Processing Tohoku University
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Goto Hiroshi
Institute Of Mogami Environmental Chemistry Co. Inc.
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